This issue may be low priority or very difficult to fix, and has been put on the back burner for the time being.

When there is a large number of objects on the screen with pixel offsets moving around, mouse commands and any other things having to do with the interface become progressively unresponsive. This is single-user mode only, however in some cases over time mouse commands in hosted worlds also begin to become unresponsive. Regardless of how slow the mouse commands/interface becomes, the keyboard commands consistently run at full speed.

The same issue used to happen with keyboard commands/verbs when a game used a lot of pixel movement, but that was fixed.

The problem would seem to be that the message queue has gotten busy. We have code to work around this for keyboard events, but to satisfy id:115079 we took out similar code that handles mouse events. I'll have to see what can be done to handle this situation.